Difference between revisions of "Erigeron hessii"

G. L. Nesom

Brittonia 30: 440, figs. 1–5. 1978.

Common names: Hess’s fleabane
EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 336. Mentioned on page 267.
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name=Erigeron hessii
 
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|publication title=Brittonia
 
|publication title=Brittonia
 
|publication year=1978
 
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|special status=Endemic;Conservation concern
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V20_770.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_770.xml
 
|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Erigeron
 
|genus=Erigeron

Latest revision as of 20:05, 5 November 2020

Perennials, 5–16 cm (often cespitose); rhizomatous, fibrous-rooted, thickened caudices or rhizomes branched, woody. Stems erect, loosely strigose to hirsute, eglandular. Leaves mostly basal (usually persistent); basal and proximal cauline blades oblanceolate to oblanceolate-spatulate, 20–50(–70) × 3–9 mm, distal bractlike (mid bases subclasping), margins entire with pair of teeth, faces glabrous or sparsely strigoso-hirsute, eglandular. Heads 1(–3). Involucres 5–6 × 8–13 mm. Phyllaries in (2–)3–4 series (usually purplish), coarsely strigoso-hirsute along midribs, sparsely to densely minutely glandular (glands sometimes obscured by hairs). Ray florets 44–75; corollas white to lavender, 8–13 mm, laminae coiling slightly at tips. Disc corollas 2.6–3.1 mm. Cypselae 1.1–1.3 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 13–18 bristles.


Phenology: Flowering May–Jun.
Habitat: Andesitic dikes in otherwise rhyolitic rock, bedrock cracks in open areas, upper montane to subalpine conifer forests
Elevation: 2900–3100 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron hessii"
Guy L. Nesom +
G. L. Nesom +
Hess’s fleabane +
2900–3100 m +
Andesitic dikes in otherwise rhyolitic rock, bedrock cracks in open areas, upper montane to subalpine conifer forests +
Flowering May–Jun. +
Endemic +  and Conservation concern +
Achaetogeron +  and Trimorpha +
Erigeron hessii +
Erigeron +
species +